Home / 21,267.18-31,859.25-15,634.46

Finding the Fourth Proportional to 21,267.18, 31,859.25 and 15,634.46

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Solution

The fourth proportional to 21,267.18, 31,859.25 and 15,634.46 is: 23,421.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.18 : 31,859.25 = 15,634.46 : x
  2. Step 2: Convert to fraction form
    21,267.18/31,859.25 = 15,634.46/x
  3. Step 3: Cross multiply
    21,267.18x = 31,859.25 × 15,634.46
  4. Step 4: Simplify right side
    21,267.18x = 498,102,169.76
  5. Step 5: Solve for x
    x = 498,102,169.76/21,267.18
  6. Step 6: Final answer
    x = 23,421.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.